Installing an SSL certificate crashes apache

Good day everyone, I have a problem with installing an SSL certificate bought from Comodo for one of my clients (ISPConfig 3.0.4.6, Debian Squeeze 64-bit, Perfect Setup).

I'm doing it with the client's credentials - and it turns out that a client can crash apache for the whole server!

Anyway, this is what I did. First I checked the "SSL" mark, created a certificate, and sent CSR to Comodo. When the certificate was ready, I pasted the certifcate and SSL Bundle (as received from Comodo) to the corresponding fields, with the SSL action "Save certificate".

Then after a little time apache just crashes (and it can't be manually restarted), with the following error log:

It originally arose because Comodo issued their certificate based upon a slightly different spelling of the company's name - accordingly, the original CSR and the .key file didn't match with the issued certificate.

I asked Comodo to re-issue the certificate, and now everything works like a charm.

But still there is a matter that I touched upon previously - it looks like any client can totally hang apache for the whole server if the wrong data is pasted in the SSL fields from inside the ISPConfig client's panel.